Multitech MULTIVOIP MVP-2410 User Manual page 330

T1 Phonebook Configuration
Field
Name
Alternate
IP
Address
Round
Trip
Delay
The Alternate Routing function facilitates PSTN Failover protection, that is, it allows
you to re-route voip calls automatically over the PSTN if the voip system fails. The
MultiVOIP can be programmed to respond to excessive delays in the transmission of
voice packets, which the MultiVOIP interprets as a failure of the IP network. Upon
detecting an excessive delay in transmission of voice packets (overly high "latency"
in the network) the MultiVOIP diverts the call to another IP address, which itself is
connected to the PSTN (for example, via an FXO port on the self-same MultiVOIP
could be connected to the PSTN).
3. Call diverts to
Alt IP address in voip
accessing PSTN line.
1. Call originates.
PSTN Failover Feature
PSTN temporarily in case the IP network fails.
Alternate Routing Field Definitions
Values Description
n.n.n.n Alternate destination for outbound data traffic
where in case of excessive delay in data transmission.
n= 0-255
milliseconds The Round Trip Delay is the criterion for
judging when a data pathway is considered
blocked. When the delay exceeds the
threshold specified here, the data stream will
be diverted to the alternate destination
specified as the Alternate IP Address.
FXO
VOIP
NETWORK
2. IP network fails.
FXS
. The MultiVOIP can be programmed to divert calls to the
330
MultiVOIP User Guide
PSTN Line
VOIP
IP
4. Call completed
via PSTN.
PBX